.heart{
    @size :1em;
    
    
    position: absolute;
    display: block;
    width: @size;
    height:@size;
    transform: rotate(45deg);
    
    &::before,
    &::after{
        content: '';
        position: absolute;
        left: -50%;
        display: block;
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: inherit;
    }
    
    &::after{
        left: 0;
        top: -50%;
    }
}